Cutting apparatus for harvesters.



J. DAIN.

'CUTTING APPARATUS FOR HARVESTEBS:

APPLICATION FILED JAN 4, I913.

Patented Jan. 2,1917.

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J. DAIN.

CUTTING APPARATUS FOR HARVESTERS.

APPLICATION FILED JAN- 4. 1913.

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JOSEPH DAIN, OF MOLINE, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO DEERE & COMPANY, OF MOLINE, ILLINOIS, A CORPORATION OF ILLINGIS.

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Specification of Letters Eatent.

Patented Jan. 2, 1917.

Application filed January 4, 1913. Serial No. 740,156.

To all wlwm it may concern .Be it known that I, JosErH DAIN, a citizen of the United States, residing at Moline, in the county of Rock Island and State. of Illinois, have invented certain new and use ful Improvements in Cutting Apparatus for Harvesters, of which the following is a specification, reference being bad therein to the accompanying drawing. 1

My. invention relates to improvements in cutting apparatus for mowers and other harvesting inachines, and has for its object the form and assembly of the various parts to insure a closer joint with a minimum expense of manufacture.

A further object ofmy invention is to construct the apparatus so as to materially reduce the liability of clogging when cutting over mealy or' soggyground. V

Referring to the drawings in which similar numerals indicate identical parts-Figure 1 is a plan view of a part of a finger-bar illustrating my improvements, Fig. 2 is a side elevation of the same in part section, Fig. 3 is a side elevation in part section, showing the apparatus passing over soft, uneven ground, and Fig. 1 is an enlarged. detail section.

I have shown the finger-bar 1 in cross-section in Fig. 2, and the guard-finger 2 and clip 3 in part section the better to illustrate my invention; the guard-fingers are provided with the usual wings 7 as fenders for the cutter-bar 8.

As ordinarily constructed, finger-bars for mowers, reapers and other harvesting machinery are rectangular in cross-section, and the method usually employed in mounting guard-fingers thereon, together with the consequent thickness of the guard-finger, not only prevents close cutting, but allows an accumulation of soil in front of the fingerbar, contributing to a rapid wearing of the different parts of the mechanism. To overcome this condition I construct the fingerbar 1, as shown, with a bevel on its under side extending from its forward edge a sufficient distance rearwardly to present an easy slope.

The forward edge of the finger-bar 1 contacts as usual with a shoulder 4 on the guard-finger 2; at this particular joint the parts must be held rigidly together to preserve the efiiective operation and durability of the entire mechanism; under working is vassured.

conditions the contact of the finger-bar 1 with the shoulder 1 is liable to become loose, and in order to tighten it without the addition of other parts I make the bolt-holes in the finger-bar 1, the guard-finger 2 and the clip 3, at an angle rearwardly from the vertlcal, so that the bolt 5 is substantially at right angles to the bevel of the finger-bar 1. Inassembling the parts, the bolt-holes in the finger-bar 1 and guard-finger 2 register when the front edge of the finger-bar first contacts with the shoulder l and before the bevel of the finger-bar and guard-finger come in contact, as shown in Fig. 4; a tightening of the bolt to bring the bevel surfaces together will at the-same time increase the pressure of the front edge of the finger-bar against the shoulder 4 so that a tight and rigid joint In Fig. 3 I have shown my device meeting with an uneven spot in soft or sog ground. The guard-finger 2 has forced its way through the slight elevation of soil, making a depression therein of just the width of the finger, this will leave the obstruction its original height on each side of the guardfinger 2, and, as shown by the dotted line a, the wing 7 will contact with the elevation of soil pushing it under or ahead to clear the cutter-bar 8. In finger-bars as ordinarily used and rectangular in cross-section, the front edge of the finger-bar will next contact with the elevation of soil piling it up in front and causing it to pack in the usual channel in which the cutter-bar moves; in my finger-bar, however, with the long rearwardly extending bevel, the front edge of the bar will pass above the soil elevation, the latter meeting with the bevel on the under side of the bar 1 a considerable distance rearward of the front edge, as shown by the dotted line b, so that no soil will pile up or accumulate in front of the finger-bar 1 to clog the cutter-bar and destroy its efficiency.

I have found the structure shown and described to be highly eflicient under every condition, the long rearwardly extending bevel of the finger-bar permitting the use of a thinner guard-finger so that the out can be made closer to the ground, the rearward inclination of the bolt 5 holding the several parts in close and rigid engagement.

What I claim isl. A finger-bar having its rear edge of greater thickness than its front edge, a

guard-finger secured to said finger-bar, a shoulder on the guard-finger against which the front edge of said finger-bar contacts, and means to increase the pressure of the front edge of the finger-bar against said shoulder as the finger-bar and guard-finger are drawn together.

2. A finger-bar having its rear edge of greater thickness than its front edge, a guard-finger secured to the lower side of said finger-bar, said guard-finger increasing in thickness forwardly the length of its connection with said finger-bar, a shoulder on the guard-finger against which the front edge of said finger-bar contacts, and a bolt inclined rearwardly from the vertical and adapted to hold said guard-finger and fingerbar together, the pressure of the contact of the front edge of saidfinger bar against the shoulder on the guard finger being maintained or increased by tightening saidbolt.

3. A finger-bar having its rear edge of greater thickness than its front edge, a

guard-finger secured on the lower side of said finger-bar, a shoulder on the guard-finger against which the front edge of said finger-bar contacts, a bolt inclined rearwardly Washington, D. 0.

from the vertical and securing said guardfinger and finger bar together, the pressure of the contact of the front edge of saidfin ger-bar against the shoulder on the guardfinger being maintained or increased by tightening said bolt.

4. A finger-bar beveled on its under side downwardly and rearwardly, a guard-finger having a shoulder thereon against which the front edge of said finger-bar contacts, said guard-finger being beveled downwardly and rearwardly from said shoulder, bolt-holes in said finger-bar'- and guard-finger substantially at right angles to their bevels and adapted to register when the front edge of said'finger-bar and guard-finger contact, and

a bolt in said bolt-holes to draw the bowels of the finger-bar and guard-finger together and increase the pressure of the front edge of the finger-bar against the shoulder on the guardfinger. 7 V g Y 1 In testimony whereof I aflix my signature, in presence of two witnesses. S

' J OSEPH DA'IN. Witnesses: g Y

BERTHA A. MAURER, W. Gr. DUiirmLD. V

five cents each, by addressing the Gon nfissionerpf 131191118; 

